// Pure Source Code - Another free Service to you from
// www.viewsource.dk, lots of free Java Applets, DHTML and JavaScripts 

<script language="javascript">
function check()
{
if(document.Add.Navn.value=="")
{
alert("Remember to fill in your name");
document.Add.Navn.focus();
return false;
}
else if(document.Add.Alder.value=="" || isNaN(document.Add.Alder.value))
{
alert("Remember to fill in your age (must only contain a number)");
document.Add.Alder.focus();
return false;
}
else 
{
return true;
}
}
</script>

<form name="Add" ACTION="Validateform-number.htm" method="post" onsubmit="return check()">
Your Name:<br><input name="Navn">
<br><br>
Your Age:<br><input name="Alder">
<br><br>
<input type=submit value=Submit>
</form>
